00401nam a22001457a 450000500170000000800410001708200140005810000190007224500440009126000380013530000180017365000240019165500200021570000200023520260408104433.0260408b        |||||||| |||| 00| 0 eng d  a930.1 CLA  aClark, Grahame  a Prehistoric societiesc/Grahame Clark   aLondonb: Penguin Books c, 1970.  a352p.c; 15cm  aPrehistoric peoples  aHuman evolution  aPiggott, Stuart